Data Announcements

High-Vertical Resolution Soundings Available for SGP and NSA
Sep 29, 2014       
The ARM External Data Center (XDC) now provides atmospheric soundings—vertical measurements of the atmospheric column—in 1-second resolutions collected by the National Weather Service (NWS) in netCDF format to the ARM Data Archive. Quality control is added by the University Corporation for Atmospheric Research. These weather balloon soundings record temperature, pressure, altitude, humidity, and winds [...]

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Microwave Radiometer Retrieval Data Available for AMF Sites
Jul 22, 2014       
The Microwave Radiometer Retrievals (MWRRET) value-added product (VAP) has now been processed for the following ARM Mobile Facility (AMF) deployments: Black Forest, Germany Shouxian, China Niamey, Niger, West Africa Graciosa Island, Azores. Preliminary data are also available for the MAGIC deployment of the AMF in the evaluation area of the ARM Data Archive. The MAGIC data do not currently include [...]

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MICROARSCL Evaluation Data Released: Harnessing the Power of Radar Doppler Spectra
Jun 27, 2014       
Since 2004, the ARM Climate Research Facility has collected continuous recordings of profiling radar Doppler spectra. These recorded spectra offer a powerful means for overcoming the dependency of radar measurements on particle size (proportional to the sixth power of particle diameter), thus enabling the identification of both small and large particle populations in a radar [...]

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New Best Estimate Data Available for WACR-ARSCL
Jun 19, 2014       
New data from the 95 GHz W-band ARM Cloud Radar-Active Remote Sensing of Clouds (WACR-ARSCL) value-added product (VAP) (Kollias and Miller, 2007) are now available in the ARM Data Archive. In addition to the WACR data, this VAP uses observations from the micropulse lidar and ceilometer to produce cloud boundaries and time-height profiles of cloud [...]

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Forcing Data for MC3E Updated
May 16, 2014       
Large-scale forcing data from the Midlatitude Continental Convective Clouds Experiment (MC3E) have been revised based on the recent update to MC3E sounding data for improved dry bias correction. These include both the ensemble forcing, which is based on uncertainties in precipitation, and the multi-domain forcing data sets over the 300 km, 150 km, and 75 [...]

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Ceilometer Derived Planetary Boundary Layer Height Datastream Available
May 05, 2014       
Planetary Boundary Layer (PBL) height data are now being collected at ARM sites and mobile facilities using an enhanced gradient method algorithm from the Vaisala Ceilometers (VCEIL). These data are part of a new datastream available to the ARM and broader scientific community thanks to an evaluation conducted to compare the PBL height measurement from [...]

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Standards for ARM Data Assure Consistency, Sustainability
May 02, 2014       
To sustain and enable consistent use and analysis of multiyear data sets by the scientific community, the newly published ARM Data Standards Version 1.0 details the required and recommended standards for ARM data.

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ARM Data Archive Registered with Elsevier
Apr 02, 2014       
With an ever-increasing need to connect related pieces of information, databases rule the world. As of mid-March, the ARM Data Archive—containing two decades of continuous measurements of clouds, aerosol, precipitation, and radiative energy from ARM sites around the world—is now included on the data repository page of the highly-regarded scientific publisher, Elsevier. Listed under [...]

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Ensemble Large-Scale Forcing Data for the MC3E Campaign Available
Feb 26, 2014       
Ensemble forcing data from the Midlatitude Continental Convective Clouds Experiment (MC3E) were developed by considering uncertainties in precipitation observations using the analysis described in Zhang and Lin [1997] and Zhang et al. [2001]. MC3E was a major ARM field campaign conducted from April to June 2011 near the ARM Southern Great Plains (SGP) site to [...]

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Derived Wind Profile Data from Doppler Lidar Ready for Review
Feb 26, 2014       
Vertically resolved wind measurements are crucial for numerical weather prediction and for modeling pollutant and aerosol transport. The scanning, coherent Doppler lidars operated by the ARM Facility have the capability of providing accurate, high-resolution wind measurements within the atmospheric boundary layer. A new Doppler lidar wind profile value-added product (VAP) is available as an evaluation [...]

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